Safety device for typographical machines



Nov. 4, 1930. A G, sl-QERRY 1,780,848

SAFETY DEVICE FOR TYPOGRAPHICAL MACHINES Filed Aug. 31, 1929 l llllllt INVENTOR.

1 29 "'O" agg/ l BY @j i m 1 r11/1111111171277; A TTORN E Y 6 f f4 25 l] Patented Nov. 4, 1930 f UNITED erfasstv ARTHUR G vsrnnsy, or HoLLlsNnw osmnssenoa To INTERTYPE cearen-errori,Y

PATENT- ser@ SAFETY DEVICE FOR TYPOGRAPHICAL MACHINES .Appnauon mea Augustei, ieee. semina. 389,826.

"vThis inventionl relates to typographical machines of the general class disclosed in,v Letters Patent of thel United States, No. 436,532, granted Sept. 16, 1890 to O. Mergenthalejnwvherein' circulating'matrices are released Zfrom a magazine 'undercontrol'of 4a keyboard' and composed in a line, the line tlien transferred intov a vertically lmovable first elevator or matrix-supporting memc ber'whichpresentsit to "the mold, whereupon I', -,In the'operation of machines ofthis character, thecomposedline of matrices isprethe mold is filled Vwithlmolten metal to cast a type-bearing slug against the matrices, and the matrices thereafter returned through distributing mechanism'to themagazine.A 1

sented to the moldv in predetermined 'relationship with respect to certain alignment means common to the associated parts which retain the matrix line for casting, and if such relationshipy is impaired, through inadvertence in the setting of the machine, or otherwiseD vthen the mold would collide with the matrix` supporting member and t-his would damage the machine and an opening would result which would allow molten metal when delivered from thel pot into the mold against theline of 'matricesfto squirt.`

Anv objectA of this .invention means iny typographical machines ofthe posedline of matrices is improperly aligned, A

class'irdes'cribe'd for automatically stopping the operation; of the machine when a comwhich the means forv carrying out said object has been foundto involve certain difficulties owing to the limited space available in which to accommodate the various parts. The present invention greatly simplifies themeans is [to provide l necessary to insure the desired safety as well as to greatly vreduce the space required for the operating parts and at `the Sametime secure a more positive action.

l/Vith the'foregoing and other objects in .1;

view, the invention consists in certaintim'- proveniente and combinations and arrange.

ments of fparts as willv be hereinafter, de'- scribed, it being understood that the invention is not limited to the precise embodiment herein disclosed since equivalent constructions are contemplated and such' will beincluded Vwithin the scope ofy theappended claims. l Y u ln the accompanying drawings Fig. 1 is a fragmentaryvview partly in sec-` tion taken vertically through the casting mechanism of va line casting machine, showing `the invention applied thereto, the parts being shown in actuated position; Y i

Fig. 2 is a top plan view of a portion of the structure shown in Fig. l:

Fig'. l3 is a side elevation of certain of the y parts illustrated in Fig.V 1 but'sh'owing these parts 1n normal position; and

the stop mechanism of the machine, showing the improved safety meansV applied thereto. l Similarparts are designated .bythe same reference characters invall ofthe figures.

175 F ig. 4 is a perspective view'of a portion of The safety device of the present inventionr is applicable generally to typographical mai chines of the class referred to, and since the construction and mode of operation of such machines are well known and the S. E. Sperry U. S. Letters Patent'above referred to'iclearly shows Va generally similar safety device7 applied to the cooperating parts which are commonly used in such machines, the description herein is confined to the particular partsof the machine affected by this invention.

It is well understood in the art that in the operation of machines ofthe class hereinv v before referred to, the matrices are assembled in a line and the line carried before themold while held between a pair of jaws 1 which are fixed on van elevator, andit vis common practice, as disclosed in U, S. Letters Patent No.,1,439,586 :granted Dec. 19,1922 toll/LL. Van Keuren Ato provide this elevator with screw. 2.

an adjusting screw 2, and to bring the aws down to'any one of a plurality of levels with` respect tothe moldV in accordance with vthe setting of a bari?) provided with studs l of able therein to bring one or'another of these studs 4C into position to' be engaged by the cording to the stud engaged bythe adjusting If theslidable aligning bar 3( should be inadvertently rset to position a wrong height stud underthe set screw, akconditionvould eXist as Yclearlyshown'in Fig,4v l wherein the VVbottom lugs of matrices would not align with' the grooves of the inoldwhich is carriedk jon theusual mold wheel `6, and-as the mold 4Vwheel'is pushed'forward, toj closev theinold against the lineof:'matricespreparatory to casting a slug, 'asis the usual methodl of op# eration, the resulting obstruction would cause damageto the matrifx lugs andto the mold', as well as'the matrix supporting jaws.

` The safetyfmeans shown. in my prior'pat ent herein'before l referred to prevents such damage by providingthe levcrwhich ordi'- narily acts as a direct and Vrigid means Vfoi1` riving' the usual mold wheel 'and slide forv/aid, with vsupplemental 4yieldable lever Y vr'means which prevent the mold slide yand v\'lie'el"fiom being driven forwardagainst any' 3 Vobstruction'with,undue force, but the appli f cation of .said yieldable lever means in the manner shown Y in said patent obviously requil-'es considerable space and the supporting vmechanism of the machine adjacent "thereto will not always permitmalnng such levers 'ofv sufficient size Yto insure Ysubstantial strength.

y Moreover, such yieldzvible lover means is so yextremely `sensitive vthat it is objectionable because it comesinto action upon the ,brealrf` j awaylrof themetal'pot from the mold after the Y casting of aslug.

metal potiinouthpiece or the'type metal be! F or instance, when .the

comesfisomewhat chilled, it is well `known that the brealf-awayof the metal pot from the i-o'ld requires the eXertioi-i `of` considerable y forcer becausecthe chilled:metalinthe line holes ofthe' pot 'mouthpiecesolidifi'es with that infthe bacl'lof the'slug in the mold.I The metal pot however iscompelledto move back' b'yitown--controllingcam and roller-so that .Y the strongbaclr p u'll to brealgthe mouthpiecoy v awavxfrorn'the slugi-als'oitends toxpull'the slug back and this in turnltransmits theba'ck 1 pull to -theientire mold wheel and slide'wlrereupon, the ysensitive 4yielda-ble. levers are acted upon in* some'; cases to' such an'VA extentf as to cause'them to work ina reverse direction" and ilafidvtentlrf throw out the durch, thereby stoppingthe machine.l

action of such a safety device by constructing it so that vit Awill only come into action upon the forward or advance movement of the mold.

slide'whenever an obstruction to such move-V ment occurs.l In reality,fthe present invenV tion provides a construction which 1s .a Vreiversal'of that shown in my said-prior patent in the sense' that the yieldable overmotion in- ',stead of being applied to the usual mold cam screws Qiand therebyjarrest the'v downward movement of the-jaws at different levels,rficry lever to compensate forfinterrupted v'move-i ment of the Vmold slide as in my said prior patent, is, in the present instance, applied to Y Y the lmold slide.y The improved construction also permits thev device to be applied in a posi,- tion'in the machine where more space is available and Without obstructing or requirin the alteration of .other supporting. parts 0 "the machine.

rrR'eferri'ng to the drawings showing the .iine proved construction, Fig;l 1 Ashows* v:thev usuali mold slide leverl `7 Ysuspended yby* *the pivot 7a- YfromV the usual` hand lever 8? ofgthe'pump bracket i9@ iiXed tothe main' frame ofthe ma chine. .The lower endet the lever` 7 carries,

twofrollers Sand-'9, lthe roller 8 engagin'gginla lcurvedfrec'ess l0 formed'in thebackend vof Vthe usual mold slidejll. Y The mold wheelGj is'carried ion an arm 12 which is also 'a' part of themoldsli'de and thefslide itself lisformed with beveled` surfaces 1 at" the topgand bottom toftjnto ways' inv the main column/13101? lthe Y 'machine.` The Vlever 7 V byj engagement of 'its roller 8 with the] mold slide 11," transmits fa' forwardmovement to themold slide 'atthe' lproper time, ,thejmotijon being controlled by engagement ofthe roller 9`als'o on'leveri with the {sur-face l'lljoffja camcgroovein'the usuali' mold cam and gear wheel 15 y'of the machine as shown in Fig. 3;

J The usual vertical starting lever 'sh'a'ft l is commonly providedwithtwoleversl? and" 181Suitablypvotedon 'pvotprins laqand "18e` um Y and in'slots `-in the shaftlwhichis mounted "at i top andbottom inl bearinglugs 19 carried on' them'ain `frame 135" Inf'the normal operation `of machinesof this class iwhichfdo not; have a mold :slide safety1 device, lthe .so called veri-y tical leverl? and its'jactuatingleverrlSV 'coop eratively act through adjustingjscr'ew 19'@L anidiV the starting 'lever' offth'emachine, not shown,

here butthe operation of which is well' under-,1V

stood, to Vthrow the.' usualfclutchf leverAY 20 such'a manner lthatfitsvv forked 'arm workiV g againstthe collar 21fof theclutch shaft 22" Y l operates the clutclil`-mechanismofthe machine, such as that 'shownin United "States Patent 661,386 grantedjnpv. e, ieootea;

R. Rogers, tofthrow the driving'power'joif for` on' as' required, it being; common and'well un?.

means and'that ythe entire 'maching'l including the cam `15,. is driven 'from `afndf controlledby;`

said;c'lutchniechanism to the present invention, is provided with a` laterally extending lledge which may be an vintegral part thereof and this extended poring the back position in the recess 10 as shown.

in Fig. 3, lthesprng 23 being-fof sufcient strength to overcome the weight'of the lever 7.

Excess'rearward movement of the plunger 24 when the roller islifted out of the recess 10 by operation of the handV lever 8a is prevented by a pinV 33 which is fixed in the mold slide 11 and projects into a slot 34 ofisuitable length and extending longitudinally inthe plunger. The upper so called vertical lever 18v pivoted in the vertical shaft16 according tion is fitted withA a slidable block 26' which carries' an'angular plate member 27 secured thereto by screws 28, the member 27 having a laterally offset arm 29 and an'A adjusting screw' 30 therein for imparting sliding motion `to the block 26 through contact of the screw 30 with the outer' face of the rear endof the recessed portion of the mold slide.` The slidable blockand platey memberk 26, 27 is yieldingly urg:ed'etowardl a Aforward position by a tension spring 31, one end of which is fastened to a hook 32 in the topfof the plate member 27 andthe other end to an angular hook 32a fastened in the web portion `ofthe lever 18 which reinforces and supports the Y ledge`25from belo'w. Sliding movement'of the block 26 and its plate 27 is'limited by providing ai groove 39 inthe side of the block i" into which a screw 40 fastened in the ledge 25 of Vlever 18 will engage and serve as a stop againstxthe shoulders at the ends of the groove39. l In the normal operation of the machine, the lever 7 will swing forwardly about its pivot 7 a as the cam surface 14, which is driven by power supplied to the clutch shaft-22 by an electric motor-or other power means, works against the roller 9,"while the roller 8 restingV in the recess 10 of the' mold slidel will impart, for instance, forward'motion thereto, the roller 8 pushing against'plunger 24, but

plunger 24 will be held back bythe powerful spring 23 so that the mold'slide will move forward and cause the mold on theV mold wheel at the forward endof the slide to advance and lock up against the line of matrices present'- edl thereto. Figr'3 shows the plunger'24`in normal position resting against the roller 81;

lIn the eventy of a misali'gnment of the matrix llugs or the matrix retaining members with the mold on the mold wheel, due to i an inadvertent setting of the 'matrix'align'-Y ing bar 3, the mold cam lever 7 willfbe forced to swing about its fulcru'm ,7au inthe'iusual manner andthe lower end of the lever will carry roller 8 forward with Tit; The inadvertent obstruction, however, will prevent the mold slide together with the mold wheel from advancing forwardly and the roller'8 will f then act against the nose ofc-plunger` 24 `and will move the latter forwardly Vand compress the spring 23 so that the obstruction inV front ofthe mold willonly receive aflimited presi sure against it without doing any harm" to the part-s linvolved inthe obstructiony infront ofthemold. v,

A"If themachinewere .allo'wedto continue to operate with onlyv thisf-provisionkto elimi-V nate damage in front of the `rnold, thepresenc'eof` such obstruction may not' at once recognized the operator andmight still result in' damagev whichcan be avoided, To this end, thel usual delivery and elevator transfer vcarnof'thejrnachin'e whichialready carries automaticgstoppingy pawls`,1 of inof concern witlrthe present inventionfand therefore, not shown, 1s arrangedtocarry asinall block. which acts as an additional stopping pawl lfor the machine` Afraglf 'i mentary 'part of the cam just mentionedI is here shown in Figs land 2 and designated 35, and the bloclcfasteneld'to ltheside there-" of `isl designatedv 36.]"As already explained, the 'block' 26 wit-h'fitsplate 'member 27 secured thereto is held infaforward' position underthe tensionv of springFV 31,ithe adjustf ing screw 30 in the-plate 27 lresting against the rear exterior surface ofthe recessed portion' of thfemoldslide andfthus4 determining the forward position. ofthe block26j If the -mold slide, moves forwardly fnormally 4'or without any obstruction inv its path, the bloclr I 26 Vand plate member-27alon'gwith the adjusting screw 30 will advance with'it1 yand the blocky 26 will thus be carried `out ofthe pathof the block 36,"but if'anfobstruction occurs: in the path Aof v'thejmold slide, as in Fig."1,"the block 26 with plate 27 will'ialso be stopped from moving forward so-that portion of the block 26 ywill vprojectrearwardlyinto the pathof theblock36 oncani` y 35. This obstruction to'rotationofcam 35 will cause the upperverticallever 18, which carries the block k26,-to pivot about its pivot p`in-18b1 in the' vertical shaft 16,v and this in turn'will cause the lower end of thelever carrying the banking screw v19a to move forv 7 ward againstthe upper end of the lower vertical leverV 17. The'lever 17 `will then:

swing about its pivot pin' 17a also the vertical shaft 16, and the lower end of this lever will then` operate against the,l usual machine clutch lever 20, the forked end of which will force the colla-r'21` to move outvvard andoperate themaindr-ivingclutch to f throw it V in roti' position vandthereby. stopI the maehinerso that the/casting'mechanism will* not operateand heneethere will be no vmetal squirt through the;,OpeningV left between the improperly positioned matrix line and mold.

i n As isy usualV inirinaehines of lthis,Character,A

thermold disc :lhlrand mold vvlfieelyfil may be niove'dl forwardly independently of its oper@ i Vating:lever 7 0r other associatedmechanism by depressing the handle of the hand leverv 17WhiohWil1 cause the` lever 7 to rise. and Y Y tolli-lift` itsiollerpiit of engagement,withA .Y thereeess l l atlthe vreaivend iiof'the nmol-d y slideigthns disconnecting. the moldslide from'V .Y its.; drijfing means... Thepresent invention Y' f does notdistuib `oninterfere with xthis de-f ftaohable Slide and .tS Operating lever- (I Claim 'asl' my invention rrelationship. ybetween the mold Vfiiiold earrier andinoldgmovable tojpresent themoldi to the line 'of matricesipovver'driveii 1` `Ine'a'vlis for moving the .moldv eai'rieigandV means vonthe li'inoldV Carrier forV yieldingly Y transmitting '.motgionV .thereto Ji'rom.

pi'ivver.-dfrivenfme'z'ifns.v A f .-1 Y 25j-A? `typogi'apnic/al y.machine inelnding 3i;

said

.means forsiipporting-a line Vof matriees, a mold Carrier i and moldl movable to bring .the

mold into casting pt 'isitioiik against; themat:

i rises, .a pQWQrdriveiinlever for movingthe mold-,Carrier 'into` casting position, andmeans on the mold carrier, and'engagedby a part.

of, said Alever for .yieldingly Vtransinitting 1110-. tion; fromsaid lever to; the mold Qarrierxto means @ve the llatterl toward- Casting position. vt'yp.ographioal `iin-achine V- inclnding I -for supporting fa line foitinatriees,a mold sli'deand' mold; IInvafble to Qbring. the mold finto.. CastingV position. against the mat-v `riesfaf-povverdriven member fory moving Y the moldslidegand a spring pressed plunger onf' the mold slide Vand movableielatively to it linthefdirectionlof movement of; said slide and er'ig'a'ged` a partfoisaid membergifor yieldingly-i trainsx'iitting motion nffrom saidy 'lfemberltothefrnold slide to'l mfove the latter' toward .Casting position,

4. A :t vpographical-V p y Machine fincliidin'g means. for: supporting a line ofmatiic'es, a moldslide and moldfmovab-le togbrin'g the chiteheontrolling itso'peratioin Clutch oper.

@tina means .me/@11S 91. @upsetting-a, line. of

LJA 'typographidalf, machine including. means',imi-supporting.1a line' of matrices., a"

matrices,A a` mold slide @11d 1n9ld movable to. bringthe mold into casting position against the: matriees',` andfpowergdriven `means for v 'moving .the-.mld slide. means engaging and movable, in iinison With the mold slide for :actuating theplntch operatingy means. to' stop the. operation 'of ythe machine. when; the-,noia` mal-merementof the. mold"Sldeiintocasting position is .-interriipted'. y Y 1 f j f 6,. In atypographical machine 'including a clutch controlling itsjoperation, clutchV operatiiigineans, meansv forsuppoiting 'ai line vof' ioY matricfes,l arnold slide'andnnoldmovable toV i bring the 'mold intor Castingnposition against Y the 4 niatniCes,` and power-driven l means for moving the/mold slide, imeanspfoiiyieldinglyf transmitting motion Vfrom ysaid `poWer..driven means. to; the mold slideto'moveitItoWard1 .Casting position, and meiiiisincludinga-part engagingfthe mold slide V'for.actuating :the

Y'cliitcli operatingl means `.to-y stop the 'opera-` tion of lthe machine when ,the normal"move-7V vment.V of the .mold ,slide into. casting.V position- Y is inte'rriipted v iin atypinaiihifainahme.ldiidngS eliitehjoontrolling:its operation, lclutch oper-f etinsleaiia means, ,for Supporting-Ie lille, matrices,v a `mold, cla rrierl and mold f movable t0 brins thQimQld intr). castingposinon againaf Y the matrices22 and power-driven means .moving the mold Carrier, meansfor yielding-V ly transmitting motion `from gsaid power'- diiven meansfto themold Cairierjto. moveothfe' mold toward casting position, and means zincluding-a partv engaging the mold arrierand gever-l1.ed,*bythev xtntf Yatal. movement .of theV mold Carrier toward `casting ,position for actuating i .the clutch operating meansv to stop the operation of the.machinevvhen'the.v

eliiteh reontrolling-A.its. operation,A aeolntch operating`"shaft havingV clutchY operating means thereon, t .a power-.driven stopping memberf Cooperative With'saidfolntohfoperate ingmeans,and mold slide and.moldmoyf, j able to bring the mold-into castingfpo'sitionz a rcontrolling member movably mounts one said cliitch; operating -ineansgand gengaging and moving yin accordance .Withthemovement .Y j

'of' the mold slide toward ycastingiposition,A said :Con-trolling member Ibeingy inlvzt he" path.

:osad Stopping member Whenthe normal movement of the. mold' slide. into casting yposi#A tion is interrupted andcausing.,actuationof` said clutch operatingmeanstostop thjefoper;

ation of the'machine;

. 9, In a ypo'grapliioalfniaohine1V 'Y .i

avelutchfeontrolling Vits operatiomva clutch operating. lever,l a-ceoperative Stopping mem-.2y

ber for actuatingit,landa; mold slide and mold Ilflfwabley tnerlythefmold ist@ Casting.;v

posi-Dioula Controlli-11g*memberemeuntedon. y i 13o. f`

Seid olluffheperathg member ieeliny pesitions in yand out of the path of said stopping member, said controlling member having a part engaging the mold slide and governing the position of said controlling member relvatively to said stopping member.

l0. ln a typographical machine including a clutch controlling its operation, a clutch operating lever, a stopping member for .actuating said lever, and amold slide and mold movable into casting position, aclutch controlling slide mounted on the clutch oper` 'ating lever to move into and out of the path my hand.

ARTHUR G. SPERRY. 

